Particulars of short distance navigation system which gives azimuth continuously and distance when challenged by beacon equipment in aircraft within range; method involves transition from earlier VORDME system which retains VOR azimuth but adds Tacan distance information; term Vortac is combination of VOR (v-h-f omnirange) and Tacan (tactical air navigation).
Vortac beacons for rho-theta navigation
Electronics
Electronics ; 30 , n 6
1957
4 pages
Article (Journal)
English
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